Knitting machine



.- G; Q'YOUNG Jul 19 KNITTING MAC INE 9 Sheefs-She t 1' Filed 0st. 15,1945 July 19, 1949. G. o. YOUNG KNITTING MACHINE Filed Oct. 15, 1945 9.Sheets-Sheet 3 9 I I @Lemye 0 Vol/0W,

July 19, 194.9. G. o. YOUNG KNITTING MACHINE 9 Sheets-Sheet 4 Filed Oct.15, 1945 m a o fye' U Yauny,

July 1&1949- o. YOUNG 7 2,476,344

KNITTING MACHINE.

Filed Oct. 15, 1945 9 Sheets-Sheet 5 July 19, 1949'. GL0. YOUNG KNITTINGMACHINE 9 Sheets-Sheet 7 Filed Oct. 15, 1945 July 19, 1949. I G. o.YOUNG 3 I KNITTING MACHINE Filed Oct. 15, 1945 9 Sheets-Sheet 8 George15 Mauwy,

G. o. YOUNG KNITTING MACHINE July 19, 1949.

' 9 Shets-Sheet 9 Filed Oct. 15', 1945 ECCENTHIC 6 6 7 3 m. C& n mN 0 TUNR NT E m as E 6 .3

E-CdENTHlOIZG INVENTOH,

MUM vm 0 6 W m V E N m T T A Patented July 19, 1949 George. 0 Young,Robesoniit, Fa assijgi gr to. 'VanityFair Mill's, Inc., Reading;E35,}?QIII!) tion of Pennsylvania Application October 15, miseseriam i62%,321; 23 claims; (o1: 56 -86) My present. invention: relates to.knitting ma chines. of the .flat'or. tr-icot type.

Among the objectsof'my invention are-the fol.- lowing:

1. To provide a. simple, effective machinefor. 5 knitting withnone-swinging. threadguide or guides by causing the;- needlehooks.to-trave1jse a double loop or figure; 8 path; the lower. loop: passinginto-thezsinkers and the. upper loop. pass ing the thread guides, themovements of the needle hooks throughsuch. path being, such as to passthe, threads on the guides on the up strokes ofthe needles,.hook-the;threads on thedcwn strokes, draw; them'through the previously: formedloopsand: knock-over 2. To provide-animhnoved thread take-up and: letout. mechanism; which operates in time. with the needles and keeps thethread taut atalli-times as the thread is. drawn and:slacke-d .by.-theneedles due to the. peculiar path; the needles; take; 20

3. To provide improvedithread; guides: and supports of such-constructionthattheguides may be swung, to difierent: angular positions and heldthere when adjustments orrepiacementsofi the uides become-necessary byvirtue oiwhich when more. than one;.threadguide: set; is. used on; themachine, the frontset'maybe swung; out of=the way to give; easyaccessto; the=other1 set, all With? out disconnecting; the threadiguidebars from the; machine;

4. To provide; a. machine: which. is. especially adapted to use the;needles which constitutesthe invention; off one; RoyrGa. Amidom for:which: he.- filed'an applicationiforpatent-on August; 18,; 194e,. Ser.No; 550,051; nowc-Batent. N01. 231333951:

5. To provide: azsi'mplameans; for? operating, the needletonguesztoopeniandielose-the needleehooks: at thev proper; timesz;

6'. To provide a.- noveliresilienttlireaditensioni 4 device overwhich-the .threadipasses tactile. thneadi guides;

'7. In generalitaptomd'e;amachine which operate at; high: speed: withiaminimumof; Vibffii-- tion';

8. To: so position: thee-thread: guide.- (or guides) supporting meansztliatt tliezthreadihaseits :direoi tion. change'di-very cl'osec tether,ends; ofitlie". guide, thus d'ampeningi any fluttering eifects'oiithe'yam at this:point;.

9. To so position tliewthreadl guide (or. guides"): supporting means-.1that is: necessary for thee thread? to; run parallel; tattle-iandibetween them throughout; the: lengthzioi the; guides;.

thus: further: damneningzlofi therthreads: is? proe- 51 2 videdl as the,giiidesmoyein a horizontal direction.

1'0. To provide; because .,oc thedouble 1001p needle path, sinkers whichare stationary,.thus further simplifxing, theconstruction off; themachine Other. objectsfwill in. part'lfie obvious and in will; be.pointed out. hereinafter.

To the. attainment of the aforesaid objects, and ends; the. inventionalso. residesin those novel details of construction,v combination andarrangementoi parts,whichwilliliereihafter be first fully described and.thenwilll be. specifically pointed out in: the.appendedclairns;reierenoe being. had to. the accompanying drawings inwhich:

Fig. Lisa frontelevationiofa machine embodying my. invention par.tslbeing, broken. awas Fig. 21in atopipl'an. view ofia portion of the.$211118,

Fig: 3 is an'end; elevation, looking from right to leftfin Fig) 1. V

Fig, 4., is a; cross section on the line 4-4" of Fig, I. r

Fig. 5 is an. enlarged; diagrammatic view: showing the relative.proportions oi the parts: neces'- sary to cause the needle hooks totravel the. double loop path indicated in Fig, 6.

e s-'a;.dee. 1.; eni d s e io with the? needle. path: and sinker nibpath indicated throughout'one cyclof the machine;

Figs; 6 to" 6 5 respetivelf indicatethe needle and nib positions withrem-(mo the sinkers andthetliread guides at'tlie points I-to l5 res-pectively-of- Fig: 6%

Fig. 7-is a view similarto'F-iga 4 showinga seeon-d' embodiment;ofiinvention; when the sinnersare stationary;

Fig: 8 is a'vi'e'w simil'ar toFi ga- 6; with-the-needle path: indicatedwith. respect to the thread guides and the stationary sinkrs... I

Figs-.1 891w; 8l respeotivelwindicate the: needle pOSitiOHSaatthepointsai to}. l5; in; Fig. 8:

Fig. 9: is aadetailiviewi of one: ofithe" adjustable. thread:gmde-baresupporting; arms;

Fig. l0 is a. viewsimilar:teal-lie,v 9- of a; modification.

Fig; lb isya detail. front; elevation of. some of the partsshown inEi'giT-z Fig:- 12: is a. detail; planzview hereinafter again referredto;

Fig;- 1'3,= is. a. view similazrto; Fig, 7; showing a modification. thatmay; he used: to: produce the need1e path a showmineeithen-nigi 6- orFig. 8;

In, thegdrawingsi in like numerals; and

letters-of:reienenneimditateilike nartsr in? allzthe.

3 figures, I to I5 represent points in the figure I3 path of the needlehooks in Figs. 6 and 8.

The cross or spacing frames I5 are connected at suitable intervals andbraced by pipes I41. Mounted in suitable bearings 64, in the crossframes I6, is a rotatable shaft I7, that may be the first motion shaftof the machine to which power is applied in any well known manner. Arock shaft I8 is also mounted in suitable bearings 65. The rock shaft I8is bored transversely through its axis to provide bearings I 9 forhollow shafts or rods which carry bifurcated heads 2I on which theneedle bar 221 is secured in any suitable way. The heads 2I also carrycross rods 21 to which the tongue bar 26 is attached. The cross rods 2'!have movement in the direction of their axes, in the bifurcations of theheads. The rods 2'3 carry rollers 28 and are spring pressed, as at 29,in a direction to cause said rollers to contact stationary cams 32 andopen the needle hooks. The cams 32 are carried by fixed channel bars 3|as best shown in Fig. 4. A stop nut 39 is provided on each rod 27 forthe usual purpose.

The needles 24 have their bases'23 removably mounted on the needle bar22 while the tongues 33 have their bases removably mounted on the tonguebar 26. It should here be stated that the tongues are anchored inthehooks of the needles and close the hooks by being swung laterally withthe anchorages as fulcrums. When the bases 25 are moved away from thebases 23 the needle hooks are closed and when the bases 25 are movedtoward the bases 23 the needle hooks are opened.

Mounted on the first motion shaft Il are eccentrics 34 that turn instraps 35 having caps 36. The rods 23 are pivoted to the straps 35 at33'.

A second eccentric carrying shaft 38 is journalled in bearings 63 andcarries eccentrics 39,

straps 48 and caps 4|. The straps 40 are pivoted at 43 to arms 42 whichare rigidly secured to the rock shaft I8 as at 41. The shaft 38 isdriven from the shaft I! at twice the speed of said shaft I! by asprocket and chain connection 44, 45, 46.

The sinkers 49 are mounted on a fixed support or sinker bar 48. In. theembodiment of my invention illustrated in Figs.. 1 to 6 the sinker nibs54 are endwise movable over the sinkers ie. The sinker nibs are mountedon a sinker bar 53 that is secured to the heads 52 which heads are carried on hollow rods 5I that pass through bearing apertures in afixedshaft 53 and are pivotally connected at 59 to the straps 57 which, withtheir caps 58 embrace eccentrics 5&3 on a third rotatable shaft 55. Theshaft is driven from the shaft H at the same speed by a sprocket andchain drive 50, BI, I52.

and 61 indicate fixed non-rotatable rods that carry the thread guides.These rods are provided with collars in the preferred construction) 68having splines 69 to fit the grooves in the thread-guide-bar-carryingarms It and Ti later again referred to.

Other rods I3, 14 are fixedly held in the frame members IS. The rods 66,67, F3 and I4 may be held from turning by means of set screws I2. Therod I3 is set above and, preferably, somewhat forward of the rod I4 andthese rods carry spring metal plates 15 and I6 respectively, the outeredges of which are curved down to permit the threads T and Trespectively to slide over without cutting. The resilient plates l5, i5act 4 as thread tensioning means and exert a uniform tension throughouttheir entire lengths.

The shaft I8 of the lower beam 'I'I lies in bearings I9 in the endframes I6 while the shaft 81 of the upper beam 89 lies in bearings 82 inthe frames.

The thread take-up and let-off mechanism, which constitutes a part of-myinvention, comprises a stub shaft 83 that is journalled in suitablebearings in an end frame I6 and carries a spur gear 85 that meshes witha spur 92 on the shaft SI of the lower let-off and take-up roller 95. Abell crank lever 88 is pivoted on the shaft 33. Its short arm carriesthe shaft SI while its long arm carries a cam-engaging roller H4. Anupper stub shaft 84 has a gear 86 that meshes with a gear on the shaft94 of the upper takeup and let-off roller 93. The shaft 94 is journalledin the short arm of a second bell crank lever 89, the lever 89 beingpivoted on the shaft 84 and carrying on its long arm a cam-engagingroller II5. The shafts 83 and 84 are connected bya sprocket and chaindrive 81. The shaft 83 is driven from shaft 55 by mechanism best shownin Fig. 3 by reference to which it will be seen that a worm IIlI onshaft 55 meshes with a worm gear I00 on a counter shaft 91 that isjournalled in bearings 98 and carries a worm 99 which meshes with a wormgear 96 on the shaft 83.

A spur gear I02, on shaft 55, meshes with a spur gear I93 on a shortshaft I64 that is journalled in bearings in an end frame and in abracket N35. The shaft I04 has a worm III'E that meshes with a worm gearI I I on the pattern wheel shaft I131. The shaft I 9'! is journalled insuitable bearings I08 and carries the pattern wheels IE9 and H0 for thefront and rear thread guides 76 and fl respectively.

The rollers H4, H5, Figs. 2 and 4, engage cams H2, II3, respectively,against which the rollers are held by springs III.

I I8 is the cloth guide roller over which the cloth passes to a suitabletake-up roll (not shown).

Front thread T is taken from the upper beam, passed around the roller93, over an upper guide bar I21 and from thence over the upper tensionplate I5 and down through the eye of the front guide I24 while backthread T is passed from the lower beam around roller 99, over a guidebar I22 and over the lower tension plate It down through the eye of theback guide I25.

Referring now to Fig. 10 it will be seen that instead of the spline andgroove connection between the arms (In or I I) which carry the threadguide bars, the arms I23 are adjustably held on thesupporting rod 66(and if desired 61) by at least one set screw I46. Each arm I23 has adovetail slot or groove II9 to receive the dovetail I20 on the slideblock I5I to which slide blocks the guide bar M5 is secured. The guidebars I45 (front and back) have extension rods I48 at their ends. Therods I48 at one end carry rollers I49 (see Figs. 1 and 2) that are heldin engagement with the pattern wheels I99, III! by the springs I5Iattached to brackets I50 on the other ends of the rods I48 and anchoredto a frame I6.

Referring now to Figure 7 showing a second embodiment of the invention,it will be seen that the shaft I1 is provided with eccentrics I26 aroundwhich are straps I21 and caps I28, each strap I21 being pivoted at I39to a link I32 whose other end is pivoted at I38 to the strap I30 of aneccentric I29 on the. shaft 38, the usual cap I 3| being'provided' Ashortarm I33 is secured to the rock shaft I8 and has a slot I 34. Thepivot 53% is preferably carried by a block I31 that is adjustablysecured in the slot I34.

In the embodiment shown in Fig. '7, each sinker I40 has an integral nibI41, while a second or auxiliary nib I44 cooperates with the nib MI andsinker Hit. The nibs I44 are carried on a nib bar hi2, carried on armsI43 secured to suitable supports as, for instance, the front rod 66.

In Fig. 13 the link I35 is shown non-adjustably pivoted to the arm I33It should be understood that the eccentric means for rocking shaft I8,reciprocating the needle and tongue bars,'the sinker nib bar andoperating the thread take-up and let-offrollers, etc. are duplicated ateach end of the machine. Also the proportions or dimensions of partsgiven in Figs. 5 and 13 are only approximate'an'd may be somewhat variedto attain the double'loop or figure 8 shape of the pathoftravel P of theneedle hook.

By reference to Figs. 5, 6 and 6 to 6 inclusive,

the operation of the first embodiment of my invention will, it is'thought, be clear to those skilled in the art. With the needle 24 (andtongue 33) at its lowest point (Fig. 6) it will have drawn the threads Tand T 'through the 'previously formed loop L asthe needle leaves thezero position and begins to rise, the shaft I8 is rockedcounter-clockwise in 5, thus moving the eye of the needle to the left.This'rnovement to the left continues until a point approximately midwaybetween points 2 and 3 in Fig. 6, i. e., between the position of Figs. 6'and 6 is reached, whereupon the eye of the needle begins to move to theright in Fig. 6, i. e.,'shaft l8 begins to rock clockwise, and thisclockwise movement continues until the needle reaches thelto'p of itsstroke at point 8, Fig. 6 (Fig. 6*); From that point 8, as

the needle starts down shaft 'I8'is ro'ckedcounter clockwise in Fig. 5until point 'I I is reached (Fig. 6 whereupon shaft I8 begins to' rockclockwise again and continues to do so until point l3 in Fig. 6 (Fig. 6is reached when shaft ['8 begins to turn counter-clockwise again andcontinues to do so until the zero point Fig. 6 (Fig. 6) is againreached, completing a knitting cycle. It will then be seen that inpassing through one cycle of operation the hook of the needles moves inapath P resembling a closed figure B.

As the needle starts to rise the sinker nib 5t advances with acontinuous motion (as does the needle also), the diife'rentpositions ofthe nib 5d at points corresponding to the needle hook position-points inFig. 6 are indicated by similarly numbered points on a horizontal lineH. The positions of thenib in Figs. 6 to '6 inclusive correspond to theposition points I to I5 on line H in Fig. 6. Referring particularly toFigs. 6 to 6 inclusive, it will be seen'that as the needle rises fromthe position of Fig. 69, before it rises suiiiciently so it would liftthe loop 11 the nib 54 will have advanced over that 100 (Figs. '6 6 Asthe needle rises the thread about the needle will be held down as asecond loop L (Fig. 6 is formed. After the'needleshall have risen pastthe position shown in Fig. 6 sufiiciently to clear the thread guides "I25, -HM (see Fig. 6 the guides are racked by the pattern wheels 'so thaton the down stroke of the'needlej it will hook the threads (Figs. 6 6and -6 to draw the threads throughthe second loop L As soon'as the pointof the hook reaches" the sinker nib (Fig. 6 the roller 28' (Fig. '5willride on cam 52 and move over (right to left,'Fig."5)-"the tongue barZB-and close the gap between the point of the hook and the shank of theneedle. This gap remains closed until the thread has been drawn throughthe loop L (Fig. 6 after which it is again opened as the head 2| istilted to the left in Fig. 5 in moving from position of Fig. 6 toposition Fig. 6 After reaching the position shown in Fig. 6' the nib 54begins its return movement so as to leave the threads between'the guidesand needles free.

The operation of the embodiment of my invention shown in Figs. 7, 8, and8 to 8 is essentially the same as the first embodiment, the position ofthe gap between the two nibs I l-I and IM being so located that when theneedle drawing down the thread reaches theposition shown in Fig. 8 itwill line up with the gap and'the threads will be clear of the sinke'rs.

As will be seen by reference to Figs. 6 to 6 the loops L L (knit offabric) are moved to the right from the position of Fig. 6 to theposition of Fig. 6 and are then moved back again to about the positionshown in Fig. 6 due to the lateral movements of the needle. This resultsin a pulland-slack action on the threads coming frcm'the beams via thethread guides and must be com pensated for. In order to eccompiish thisthe take-up and let-out mechanism shown in the drawings and hereinbeforedescribed has been devised. The cams H2, H3 are so out as to coop eratewith the needle operations and movements, that when the threads at theneedles tend to slacken the arms or levers 88, 89 will be rocked to movethe rollers toward the beams to take up slack and away from the beams tolet out the thread as required. The resilient plates 55, it take theplace of the usual spring loaded tension rods heretofore employed intricot machines, to take care of slight variations in the threadtensions.

The arms IS and II, respectively, carry the bars I2I and IBE on whichthe thread guides I24 and I25, respectively, are mounted.

The thread guides I25 and ltdhave eyes 22% and I25 respectively. Theguides only move longitudinally of the machine and do not swing back andforth.

While I have shown and described a new and improved thread guide barmounting for a knit ting machine and also a new and improved; tensioningmeans for a knitting machine, I make no claim per se to the same as theycomprise the subject matter of divisional applications filed the 10thday of September, 1946, Serial No. 695,920, now Patent Number eo1,187,and the 10th day of October, 1946, the No. 702,511, new Patent Number2,442,796.

From the foregoing description taken in connection with the accompanyingdrawings it is thought the construction, operation and tages of mymachine will be clear to those skilled in the art to which itappertains.

What I claim is: I

1. In a knitting machine; stationary sinker-s; thread guides which moveonly longitudinallyof the machine above the sinl-zers; sinker nibs; hookknitting needles mounted to move up and down through the sinkers andnibs; and means causing the needle hooks to travel in a closed figureeight path in part within the sinkers and in part between and above theeyes of the thread guides, the movement of the needles being such thatthe backs of the needles will engage the thread between the guides onthe up strokes of the needles and the needles will hookthe thread on thedown strokes; and means to close the needlehooks as the points of thehooks enter the sinkers on the down strokes of the needles, said meansto close the needle hooks comprising needle closing tongues carried bythe needles; and means to operate said tongues in timed relation to theoperations of the needles for knitting purposes.

2. In a knitting machine; stationary sinkers; thread guides which moveonly longitudinally of the machine above the sinkers; sinker nibs; hookknitting needles mounted to move up and down through the sinkers andnibs; and means causing the needle hooks to travel in a closed figureeight path in part within the sinkers and in part between and above theeyes of the thread guides, the movement of the needles being such thatthe backs of the needles will engage the thread be= tween the guides onthe up strokes of the needles and the needles will hook the thread onthe down strokes; and means to close the needle-= hooks as the points ofthe hooks enter the sinkers on the down strokes of the needles, saidmeans which causes the needles to move including a rock shaft havingbearing holes through it, shafts reciprocative in said bearing holes andcarrying said needles, means to reciprocate said shafts in said bearingholes, and means to rock said rock shaft in timed relation to thereciprocations of said needle-carrying shaft for purposes de-- scribed.

3. In a knitting machine; stationary sinkers; thread guides which moveonly longitudinally of the machine above the sinkers; sinker nibs; hookknitting needles mounted to move up and down through the sinkers andnibs; and means causing the needle hooks to travel in a closed figureeight path in part within the sinkers and in part be tween and above theeyes of the thread guides, the movement of the needles being such thatthe backs of the needles will engage the thread between the guides onthe up strokes of the needles and the needles will hook the thread onthe down strokes; and means to close the needle-hooks as the points ofthe hooks enter the sinkers on the down strokes of the needles, saidmeans which causes the needles to move including a rock shaft havingbearing holes through. it, shafts reciprocative in said bearing holesand carrying said needles, means to reciprocate said shafts in saidbearing holes, and means to oscillate said rock shaft twice to eachreciprocation of said needlecarrying shaft and in timed relation to thesame.

4. The machine of claim 2 wherein needle closing tongues are carried bythe needles; and means are provided to operate said tongues in timedrelation to the operations of the needles for knitting purposes.

5. The machine of claim 3 wherein needle closing tongues are carried bythe needles; and means are provided to operate said tongues in timed relation to the operations or the needles for knitting purposes.

6. In a knitting machine wherein hook knitting needles, thread guideswhich move only longitudinally of the machine, stationary sinkers, andsinker nibs are employed, the improvement which includes means to causethe needles to pass up from the sinkers and through the thread guideswithout hooking the threads and then pass back to the sinkers and hookthe threads on the return trip, said means including an oscillatableshaft having bearing apertures passing transversely through the shaftand intersecting the axis thereof, needle-carrying shafts mounted to bereclprocated in said apertures, and means to reciprocate saidneedle-carrying shafts and os-- cillate said oscillatable shaft, therebeing two oscillations of said oscillatable shaft to one reiprocation ofsaid needle carrying shaft.

7. In a knitting machine employing thread guides, stationary sinkers,sinker nibs, hook needles and tongues therefor, the improvement whichincludes an oscillatable shaft bored transversely along parallel linesintersecting the axis of the shaft to form bearings; a needle bar;shafts passing through said bearings and carrying said needle bar;eccentric and strap connections so as to reciprocate saidneedle-bar-carrying shafts; means to oscillate said oscillatable shaftin timed relation to the reciprocations of said needle-bar-carryingshafts to effect the path of travel of the needles so as to pick upthread on the down strokes only of the needles; and means to close theneedle hooks after the thread has been hooked and before the point ofthe hook enters a previously knit loop.

8. In a knitting machine the improvement which includes; a firsteccentric shaft and a second eccentric shaft; means to rotate saidshafts with the second shaft making two revolutions to one of the firstshaft; an oscillatable shaft having transverse bearing apertures throughit; needle-bar-carrying shafts reciprocatably mounted in said transversebearing apertures; eccentrics on said first shaft; operative connectionsbetween said eccentrics and said needlebar-carrying shafts; a needle barcarried by said needle-bar-carrying shafts; hook needles mounted on saidbar; eccentrics on said second shaft; arms on said oscillatable shaft;operative connections between said last named eccentrics and said arms.4

.9. The improvement of claim 8 wherein a tongue bar is carried by saidneedle-bar-carrying shafts; tongues carried by said tongue bar andcooperating with said needles; and means to move said tongue bar on saidneedle-bar-carryingshafts to close and open the needle hooks in timedrelation to the needle movements during the knitting cycle.

10. In a knitting machine having thread guides which move onlylongitudinally of the machine, sinkers, and nibs; two eccentric shaftseach having eccentrics and one shaft rotating at twice the speed of theother; an oscillatable shaft having bearings passing diametricallythrough the same; a set of needle-bar-carrying shafts reciprocative insaid bearings; a needle bar carried by said last named shafts; eccentricstrap connections between said reciprocative shafts and the eccentricson the slower of said eccentric shafts; arms on said oscillatable shaft;operative connections between said arms and the eccentrics on the fasterof said eccentric shafts by virtue of which for each completereciprocation of said set of reciprocative shafts said oscillatableshaft will be given two complete oscillations for purposes described;hook needles on said needle bar; and means for closing the hooks of saidneedles while they pass into the spaces between the blades of the nibsand sinkers.

11. In a knitting machine having thread guides which move onlylongitudinally of the machine, sinkers, and nibs; two eccentric shaftseach having eccentrics and one shaft rotating at twice the speed of theother; an oscillatable shaft having bearings passing diametricallythrough the same; a set of needle-bar-carrying shafts reciprocativeinsaidbearings; a needle bar carried by said last namedshafts; eccentricstrap connections between said reciprocatlve shafts and the eccentricson the slower. of said eccentric shafts; arms on said oscillatableshaft;operative connections between said armsrand the eccentrics on the fasterofsaid eccentric shafts by virtue of which for each completereciprocation of said set of reciprocative shafts said oscillatableshaft will be given two. complete oscillations for purposes described;hook needles on said needle bar; means for closing the hooks of saidneedles while they pass into the spaces between the blades of the nibsand sinkers, said last named means including a tongue-carrying barcarried by said set of reciprocative shafts; and means cooperating withsaid tongue-carrying bar'for operating the same in timed relation to thereciprocations of said set of reciprocative shafts.

12. In a knitting machine having thread guides which move onlylongitudinally of the machine, sinkers, and nibs: two eccentric shaftseach having eccentrics and one shaft rotating at twice the speed of theother; an oscillatable shaft having bearings passing diametricallythrough the same; a set of needle-barmarrying' shafts reciprocative insaid bearings; a needle bar carried by said last named shafts; eccentricstrap connections between said reciprocative shafts and the eccentricson the slower of said eccentric shafts; arms on said oscillatable shaft;operative connections between said arms and the eccentrics on the fasterof said eccentric shafts by virtue of which for each completereciprocation ofv said set of reciprocative shafts said oscillatableshaft will be given two complete oscillations for purposes described;hook needles on said needle bar; means for closing the hooks ofsaidneedles while they pass into the spaces between the blades of thenibs and sinkers said last namedmeans includin heads on said set ofreciprocative shafts; tongue-bar-carrying rods movably mounted on saidheads, a tongue-carrying bar carried by said rods, tongues on saidtongue-carrying bar and cooperatively associated with said needles; andmeans to move said tongue-bar-carrying rods hack andforth to close andopen the hooks of said needles in timed relation with the movements ofthe same.

13. A machine according to claim 12 wherein stationary cams are engagedby said tongue-barcarrying rods when the needle hooks are draw ingthreads through previously knit loops.

14. A machine according to claim 12 wherein is provided a stationaryshaft having bearings; a third eccentric shaft; a set ofnib-bar-carrying shafts reciprocative in said stationary shaft bearingsand on which said nibs are mounted; a set of eccentrics on said thirdeccentric shaft and operatively connected to said nib-bar-carryingshafts: means for turning said third eccentric shaft at the same speedas that of the slower of the first mentioned shafts.

15. A machine according to claim 12 wherein is provided a stationaryshaft having bearings; a third eccentric shaft; a set ofnib-bar-carrying shafts reciprocative in said stationary shaft bearingsand on which said nibs are mounted; a set of eccentrics on said thirdeccentric shaft and operatively connected to said nib-bar-carryingshafts; means for turning said third eccentric shaft at the same speedas that of the slower of the first mentioned eccentric shafts; at leastone beam and a thread take-up and let-out mechanism for the same, whichmechanism includes bell crank levers carrying a roller around which thethread from the beam passes; and cams on :10 said third eccentric shaftto engage said levers to operate the same in timed relation to theoperations of the needles. 7 u H t 16. In a knitting machine havingthread guides which move only longitudinally of the machine, sinkers,and nibs: two eccentric shaftsgeach having eccentrics and onesh'aftrotating; at twice the speed of the other; an oscillatableshaft havingbearings passing diametrically through the same; a set ofneedle-bar-carrying shafts reciprocative in said bearings; a needle barcarried by said last named shaftsyeccentric strap connectionsgbetweensaid reciprocative shafts and the eccentrics on the slower of saideccentric shafts; arms on said oscillatable shaft; operative connectionsbetween said arms and the eccentrics on the faster of said eccentricshafts; by virtue of which for each complete reciprocation ofsaid set ofreciprocative shafts said oscillatab'le shat-twill begiven two completeoscillations for purposes described; hook needles on said needle bar;means for closing the hooks of saidneedles while they pass into thespaces between the blades .of the nibs and sinkers; at least one beam atake-up and let-out mechanism for the beam, whichmechanism includes asetof bell crank levers carrying a roller around which the thread fromthebeam passes; and cams on said third rotatable shaft with which cams saidleversengageto be operated by the cams in timed relation to themovements of the needles; I v V p 17. In a knitting machine,thei-mprovement which includes: a first eocentric shaftanda secondeccentric shaft; means to rotate said shafts with the second shaft'makingj two: revolutions to one of the first shaft; anjoscillatableshaft having bearing apertures; needle-har-carrying shafts reciprocativein said bearings; eccentrics on said first shaft;operativeconnectionsbetween said eccentrics and said needleebarcarrying, shafts; a needle bar carried by. Said needle bar-carryingshafts; hook needles mounted on said bar; eccentrics on said secondshaft; armson said oscillatable shaft; operative connections betweensaid last named. eccentrics and said arms; a tongue bar carried by;sai1dneedl'eebar-carrying shafts; tongues carried. by saidtongue bar andcooperating with said needles; and means to move said tongue bar on saidneedle bar-carrying shafts to close and open the needle hookslnti-medrelation to the needle movements during the knitting 18. In a knittingmachine having thread guides which move only longitudinally of themachine, sinkers, and nibs: two eccentric shafts each having eccentricsand one shaft rotating at twice the speed of the other; an oscillatableshaft having bearings; a set of needle-bar-carrying shafts reciprocativein said bearings; a needle bar carried by said last named shafts;eccentric strap connections between said reciprocative shafts and theeccentrics on the slower of said eccentric shafts; arms on saidoscillatable shaft; operative connections between said arms and theeccentrics on the faster of said eccentric shafts by virtue of which foreach complete reciprocation of said set of reciprocative shafts saidoscillatable shaft will be given two complete oscillations for purposesdescribed; hook needles on said needle bar; means for closing the hooksof said needles while they pass into the spaces between the blades ofthe nibs and sinkers, said last named means including heads on said setof reciprocative shafts, tongue-bar-carrying rods movably mounted onsaid heads, a tongue-carrying bar carried by said 11 rods, tongues onsaid tongue-carrying bar and cooperatively associated with said needles;and means to move said tongue-bar-carrying rods back and forth to closeand open the hooks of said needles in timed relation with the movementsof the same.

19. A machine according to claim 18 wherein is provided stationary camsengaged by said tonguebar-carrying rods when the needle hooks aredrawing threads through previously knit loops.

20. A machine according to claim 18 wherein is provided a stationaryshaft having bearings; a third eccentric shaft; a set ofnib-bar-carrying shafts reciprocative in said stationary shaft bearingsand on which said nibs are mounted; a set of eccentrics on said thirdeccentric shaft and operatively connected to said nib-bar-carryingshafts; means for turning said third eccentric shaft at the same speedas that of the slower of the first mentioned eccentric shafts; at leastone beam and a thread take-up and let-out mechanism for the same, whichmechanism includes bell crank levers carrying a roller around which thethread from the beam passes; and cams on said third eccentric shaft toengage said levers to operate the same in timed relation to theoperations of the needles.

21. In a knitting machine having thread guides which move onlylongitudinally of the machine, sinkers, and nibs: two eccentric shaftseach having an eccentric and one shaft rotating at twice the speed ofthe other; an oscillatable shaft having bearings; a setof'needle-bar-carrying shafts reciprocative in said bearings; a needlebar carried by said last named shafts; eccentric strap connectionsbetween said reciprocative shafts and the eccentrics on the slower ofsaid eccentric shafts; arms on said oscillatable shaft; operativeconnections between said arms and the eccentrics on the faster of saideccentric shafts by virtue of which for each complete reciprocation ofsaid set of reciprocative shafts said oscillatable shaft will be giventwo complete oscillations for purposes described; hook needles on saidneedle bar; means for closing the hooks of said needles while they passinto the spaces between the blades of the nibs and sinkers; at least onebeam and a take-up and let-out mechanism for the beam, which mechanismincludes a set of hell crank levers carrying a roller around which thethread from the beam passes; and cams on said third 12 rotatable shaftwith which cams said levers engage to be operated by the cams in timedrelation to the movements of the needles.

22. In a knitting machine wherein knitting needles with hinged hookclosing tongues are employed and wherein means are provided forreciprocating the needles and tongues and opening and closing the hooks,the improvement which includes: a rock shaft having bearing apertures;rods reciprocative in said bearing apertures; a needle bar carried bysaid rods; a main eccentric shaft; eccentrics'on said main eccentricshaft; eccentric straps connecting said eccentrics with said rods toreciprocate the same; at least one other eccentric on said maineccentric shaft; 2. second eccentric shaft; at least one eccentric onsaid second eccentric shaft; eccentric straps for each of the last twomentioned eccentrics; a cross link pivoted at its ends to said lastnamed eccentric straps and having an intermediate linkarm integraltherewith; an arm secured to said rock shaft and pivoted to saidintermediate linkarm; and means for driving said second eccentric shaftat twice the speed of the first men tioned eccentric shaft.

23. A machine according to claim 2-2 wherein there is provided a tonguebar carried by said rods; hook needles on said needle bar; tongues onsaid tongue bar; and 'means for eifectively operating said tongue bar tocause the tongues to open and close the needle hooks in timed relationto the knitting cycle.

' GEORGE O. YOUNG.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,022,834 Welch Dec. 3, 19352,037,798 Kinsella Apr. 21, 1936 2,166,032 Wirth July 11, 1939 2,292,287Peel Aug. 4, 1942 2,308,430 Bolden Jan. 12, 1943 2,333,697 Boaler Nov.9, 1943 2,339,153 Cotterill Jan. 11, 1944 2,493,961 Amidon July 16, 1946FOREIGN PATENTS Number Country Date 555,678 France Mar. 28, 1923

